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CVE-2007-4849 Details

Description

JFFS2, as used on One Laptop Per Child (OLPC) build 542 and possibly other Linux systems, when POSIX ACL support is enabled, does not properly store permissions during (1) inode creation or (2) ACL setting, which might allow local users to access restricted files or directories after a remount of a filesystem, related to "legacy modes" and an inconsistency between dentry permissions and inode permissions.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://dev.laptop.org/ticket/2732	CVE
http://git.infradead.org/?p=mtd-2.6.git%3Ba=commitdiff%3Bh=9ed437c50d89eabae763dd422579f73fdebf288d	CVE
http://lists.infradead.org/pipermail/linux-mtd-cvs/2007-August/005897.html	CVE
http://secunia.com/advisories/26978	CVE
http://secunia.com/advisories/28170	CVE
http://secunia.com/advisories/28706	CVE
http://www.debian.org/security/2007/dsa-1378	CVE
http://www.securityfocus.com/bid/25838	CVE
http://www.ubuntu.com/usn/usn-558-1	CVE
http://www.ubuntu.com/usn/usn-574-1	CVE
http://dev.laptop.org/ticket/2732	[email protected]
http://git.infradead.org/?p=mtd-2.6.git%3Ba=commitdiff%3Bh=9ed437c50d89eabae763dd422579f73fdebf288d	[email protected]
http://lists.infradead.org/pipermail/linux-mtd-cvs/2007-August/005897.html	[email protected]
http://secunia.com/advisories/26978	[email protected]
http://secunia.com/advisories/28170	[email protected]
http://secunia.com/advisories/28706	[email protected]
http://www.debian.org/security/2007/dsa-1378	[email protected]
http://www.securityfocus.com/bid/25838	[email protected]
http://www.ubuntu.com/usn/usn-558-1	[email protected]
http://www.ubuntu.com/usn/usn-574-1	[email protected]

see all 20 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-264	Permissions, Privileges, and Access Controls	[email protected]

Affected Products

Product	Versions
one laptop per child olpc linux	build_542
CPE cpe:2.3:a:one_laptop_per_child:olpc_linux:build_542:::::::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 23, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Sep 13, 2007	Initial Analysis	[email protected]